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Cheap flights from Seattle to Ireland from €163

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 29/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Seattle to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
23:13 - 10:15
SEA
-
SNN
51h 02m
2 stops
United Airlines Logo
12:30 - 21:55
SNN
-
SEA
17h 25m
1 stop
€677United Airlines
Fri, 2 Oct - Wed, 7 Oct
United Airlines Logo
10:52 - 07:30
SEA
-
SNN
12h 38m
1 stop
United Airlines Logo
09:30 - 23:26
SNN
-
SEA
21h 56m
3 stops
€694United Airlines
Mon, 3 Aug - Wed, 19 Aug
Delta Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
Delta Logo
06:15 - 11:52
ORK
-
SEA
13h 37m
1 stop
€696Delta
Sun, 27 Sep - Wed, 14 Oct
Delta Logo
10:35 - 14:40
SEA
-
ORK
20h 05m
2 stops
Delta Logo
10:50 - 16:35
ORK
-
SEA
13h 45m
1 stop
€701Delta
Sun, 27 Sep - Wed, 14 Oct
Air France Logo
07:15 - 11:10
SEA
-
SNN
19h 55m
1 stop
Air France Logo
13:05 - 23:20
SNN
-
SEA
18h 15m
1 stop
€701Air France
Tue, 4 Aug - Tue, 25 Aug
United Airlines Logo
07:11 - 07:30
SEA
-
SNN
16h 19m
2 stops
United Airlines Logo
09:30 - 19:07
SNN
-
SEA
17h 37m
1 stop
€705United Airlines
Wed, 12 Aug - Tue, 25 Aug
KLM Logo
17:45 - 22:35
SEA
-
ORK
20h 50m
1 stop
KLM Logo
10:50 - 11:47
ORK
-
SEA
32h 57m
1 stop
€743KLM
Fri, 11 Sep - Mon, 21 Sep
KLM Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
KLM Logo
17:15 - 11:37
ORK
-
SEA
26h 22m
1 stop
€746KLM
Sun, 2 Aug - Tue, 18 Aug
JetBlue Logo
11:45 - 08:20
SEA
-
DUB
12h 35m
1 stop
JetBlue Logo
10:40 - 22:49
DUB
-
SEA
20h 09m
1 stop
€823JetBlue
Thu, 30 Jul - Fri, 7 Aug
JetBlue Logo
11:45 - 08:20
SEA
-
DUB
12h 35m
1 stop
JetBlue Logo
10:40 - 22:49
DUB
-
SEA
20h 09m
1 stop
€829JetBlue
Mon, 10 Aug - Sun, 16 Aug

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JetBlue flights from Seattle to Ireland

Our best JetBlue deals on Seattle to Ireland flight tickets
JetBlue
30 Jul
SEA11:45Seattle/Tacoma Intl
12h 35m
1 stop
DUB08:20Dublin
4 Aug
DUB10:40Dublin
20h 14m
1 stop
SEA22:54Seattle/Tacoma Intl
€823
JetBlue
10 Aug
SEA11:45Seattle/Tacoma Intl
12h 35m
1 stop
DUB08:20Dublin
16 Aug
DUB10:40Dublin
20h 09m
1 stop
SEA22:49Seattle/Tacoma Intl
€829
JetBlue
16 Jul
SEA11:45Seattle/Tacoma Intl
12h 35m
1 stop
DUB08:20Dublin
31 Jul
DUB10:40Dublin
20h 14m
1 stop
SEA22:54Seattle/Tacoma Intl
€832

Air Canada flights from Seattle to Ireland

Our best Air Canada deals on Seattle to Ireland flight tickets
Air Canada
13 Oct
SEA10:30Seattle/Tacoma Intl
13h 15m
1 stop
DUB07:45Dublin
20 Oct
DUB09:50Dublin
20h 52m
2 stops
SEA22:42Seattle/Tacoma Intl
€824
Air Canada
12 Sept
SEA05:40Seattle/Tacoma Intl
18h 05m
1 stop
DUB07:45Dublin
19 Sept
DUB09:20Dublin
32h 32m
2 stops
SEA09:52Seattle/Tacoma Intl
€825
Air Canada
15 Oct
SEA10:30Seattle/Tacoma Intl
13h 15m
1 stop
DUB07:45Dublin
30 Oct
DUB08:00Dublin
17h 22m
2 stops
SEA18:22Seattle/Tacoma Intl
€864

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 16 June 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 2/10

23:13-10:15

2 stops51h 02m

Shannon

Wed 7/10

12:30-21:55

1 stop17h 25m

€677

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 3/8

10:52-07:30

1 stop12h 38m

Shannon

Wed 19/8

09:30-23:26

3 stops21h 56m

€694
Fastest return journey

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 27/9

13:30-14:40

1 stop17h 10m

Cork

Wed 14/10

06:15-11:52

1 stop13h 37m

€696

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 27/9

10:35-14:40

2 stops20h 05m

Cork

Wed 14/10

10:50-16:35

1 stop13h 45m

€701

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/8

07:15-11:10

1 stop19h 55m

Shannon

Tue 25/8

13:05-23:20

1 stop18h 15m

€701

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 12/8

07:11-07:30

2 stops16h 19m

Shannon

Tue 25/8

09:30-19:07

1 stop17h 37m

€705

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Fri 11/9

17:45-22:35

1 stop20h 50m

Cork

Mon 21/9

10:50-11:47

1 stop32h 57m

€743

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 2/8

13:30-14:40

1 stop17h 10m

Cork

Tue 18/8

17:15-11:37

1 stop26h 22m

€746

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 30/7

11:45-08:20

1 stop12h 35m

Dublin

Fri 7/8

10:40-22:49

1 stop20h 09m

€823

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 10/8

11:45-08:20

1 stop12h 35m

Dublin

Sun 16/8

10:40-22:49

1 stop20h 09m

€829

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Seattle averaging around €259.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight from Seattle to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €546 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €427 on momondo.

What cabin class options are available on Seattle to Ireland flights?

There is only 1 cabin class available to choose from on Seattle to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Ireland.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

Frequently asked questions about flying from Seattle to Ireland

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €39
Flights to Corkfrom €87
Flights to Shannon, Clarefrom €90
Flights to Milltown (Kerry)from €35
Flights to Donegalfrom €84